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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fabales

Familia: Fabaceae
Subfamilia: Caesalpinioideae
Tribus: Acacieae
Genus: Acacia
Species: Acacia araneosa

Acacia araneosa Whibley, 1976

Racosperma araneosum (Whibley) Pedley

Native distribution areas:
Acacia araneosa

Continental: Australasia
Regional: Australia
South Australia

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
Primary references

Whibley, D.J.E., 1976. Contributions from Herbarium Australiense 14: 1.


Govaerts, R. et al. 2020. Acacia araneosa in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 Jul 25. Reference page.
International Plant Names Index. 2019. Acacia araneosa. Published online. Accessed: Jul 25 2019. 2019. Acacia araneosa. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 25.
Hassler, M. Jul. Acacia araneosa. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. Jul. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: Jul 25 {{{3}}}. Reference page.

Vernacular names
English: Balcanoona Wattle, Spidery Wattle

Acacia araneosa, commonly known as Balcanoona wattle or spidery wattle, is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is native to South Australia.


The erect, small and wispy shrub that typically grows to a height of 3 to 8 metres (10 to 26 ft). It blooms irregularly throughout the year and produces yellow flowers.[1] It has slender, glabrous flexuose, red-brown coloured branchlets. The pendulous, thickly filiform phyllodes are usually terete to quadrangular. The phyllodes have a length of 18 to 35 cm (7.1 to 13.8 in) but can be as long as 69 cm (27 in) and have a width of 1 to 2 mm (0.039 to 0.079 in) and narrow to the apex.[2]

The species was first formally described by the botanist D.J.E. Whibley in the 1976 work by Whibley and B.J. Walby Acacia araneosa (Fabaceae subfam. Mimosoideae), a new species from South Australia as published in the Contributions from the Herbarium Australiense. It was reclassified as Racosperma araneosum in 2003 then transferred back to the genus Acacia in 2005.[3]

It has a limited distribution in arid conditions of central South Australia in the northern Flinders Range from Balcanoona to Arkaroola where it is found on rocky slopes, ridges and hills in skeletal rocky soils[1] as is often a part of open woodland or shrubland communities along with Eucalyptus gillii and Triodia irritans.[2]
See also

List of Acacia species


"Acacia araneosa (Leguminosae) Balcanoona Wattle". Seeds of South Australia. South Australian Seed Conservation Centre. 2018. Retrieved 16 March 2019.
"Acacia araneosa". World Wide Wattle. Western Australian Herbarium. Retrieved 16 March 2019.
"Acacia araneosa Whibley". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 17 March 2019.

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